83-381 Syllabus English
... 1) Course objectives: An operating system is a set of subsystems/programs that manage a computer system composed of hardware and software resources, providing common services/utilities needed to run system and user applications. All computers and computing devices need some kind of operating system ...
... 1) Course objectives: An operating system is a set of subsystems/programs that manage a computer system composed of hardware and software resources, providing common services/utilities needed to run system and user applications. All computers and computing devices need some kind of operating system ...
Chapter 2 Operating System Overview
... – Certain machine level instructions (e.g. I/O) can only be executed by the monitor – kernel ...
... – Certain machine level instructions (e.g. I/O) can only be executed by the monitor – kernel ...
Functions of the operating systems
... 1. allows the user to organize their data on secondary storage into files & folders 2. also manages the use of main memory by splitting main memory into two parts (user area, system area). 3. Time sharing: operating system can allow more than one user to work on the same computer, and run more than ...
... 1. allows the user to organize their data on secondary storage into files & folders 2. also manages the use of main memory by splitting main memory into two parts (user area, system area). 3. Time sharing: operating system can allow more than one user to work on the same computer, and run more than ...
OPERATING SYSTEMS:
... 1.3.1. PROCESS: a program in execution. Associated with each process: ADDRESS SPACE: memory locations from 0 – maximum, which the process can read and write. It contains: the executable program, the program’s data, and its stack Set of registers, including the program counter, stack pointer, and H/W ...
... 1.3.1. PROCESS: a program in execution. Associated with each process: ADDRESS SPACE: memory locations from 0 – maximum, which the process can read and write. It contains: the executable program, the program’s data, and its stack Set of registers, including the program counter, stack pointer, and H/W ...
CSC 150 UNGRADED QUIZ - Concordia University Wisconsin
... for programs and data; Avoids conflicts (protects O/S and application instructions and data); Creates virtual memory, e.g. in Windows by demand paging. Creates illusion we have more memory than we do. ...
... for programs and data; Avoids conflicts (protects O/S and application instructions and data); Creates virtual memory, e.g. in Windows by demand paging. Creates illusion we have more memory than we do. ...
CS 291 – Dynamic Web Prog. With PHP
... On-line communication between the user and the system is provided When the operating system finishes the execution of one command, it seeks the next “control statement” from the user’s keyboard. On-line system must be available for users to access data and code. ...
... On-line communication between the user and the system is provided When the operating system finishes the execution of one command, it seeks the next “control statement” from the user’s keyboard. On-line system must be available for users to access data and code. ...
What is an operating system?
... user process (interrupt handling, process scheduling, memory management) are performed in kernel mode. ...
... user process (interrupt handling, process scheduling, memory management) are performed in kernel mode. ...
William Stallings Computer Organization and Architecture
... Late 1940s to mid 1950s, No Operating System 40年代末～50年代中, 没有操作系统 ...
... Late 1940s to mid 1950s, No Operating System 40年代末～50年代中, 没有操作系统 ...
Operating System
... • a collection of one or more threads and associated system resources • programmer has greater control over the modularity of the application and the timing of application related events ...
... • a collection of one or more threads and associated system resources • programmer has greater control over the modularity of the application and the timing of application related events ...
Operating Systems - Mid Yell Junior High School
... CPU between the foreground and background tasks. Just think: can you type to keep up with a 3 GHz computer? ...
... CPU between the foreground and background tasks. Just think: can you type to keep up with a 3 GHz computer? ...
Introduction
... the programs were executed and the output was put on another tape. The output tape was taken to a line printer where the output was printed ...
... the programs were executed and the output was put on another tape. The output tape was taken to a line printer where the output was printed ...
OPERATING-SYSTEM
... We can consider each of these development stages as providing an operating environment for business use. Some of these are now obsolete,but you should not automatically assume that an OS that does not focus on some many situations where such an approach is inappropriate. The environments we will con ...
... We can consider each of these development stages as providing an operating environment for business use. Some of these are now obsolete,but you should not automatically assume that an OS that does not focus on some many situations where such an approach is inappropriate. The environments we will con ...
Chap8.doc
... __ 7. Popular operating systems in use today include UNIX, DOS, PASCAL, and Windows 98. __ 8. New versions of an operating system usually are downward compatible. __ 9. Spooling causes a report to first be written to storage or memory before it is printed on the printer. __10. A foreground applicati ...
... __ 7. Popular operating systems in use today include UNIX, DOS, PASCAL, and Windows 98. __ 8. New versions of an operating system usually are downward compatible. __ 9. Spooling causes a report to first be written to storage or memory before it is printed on the printer. __10. A foreground applicati ...
Chapter2
... Services provided by the O.S. • Program Creation --- editors, debuggers, ... etc.. These are in the forms of utility programs that are not actually part of the O.S. but are accessible through the O.S. • Program Execution --- to execute a program, instructions and data must be loaded into the main m ...
... Services provided by the O.S. • Program Creation --- editors, debuggers, ... etc.. These are in the forms of utility programs that are not actually part of the O.S. but are accessible through the O.S. • Program Execution --- to execute a program, instructions and data must be loaded into the main m ...
Operating Systems
... expires, another task gets a turn. The first task must wait until it has another turn. Since time slices are so small, you usually can't tell that any sharing is going on. Tasks can be assigned priorities so that high priority (foreground) tasks get more time slices than low priority (background) ta ...
... expires, another task gets a turn. The first task must wait until it has another turn. Since time slices are so small, you usually can't tell that any sharing is going on. Tasks can be assigned priorities so that high priority (foreground) tasks get more time slices than low priority (background) ta ...
Operating System
... When Operating Systems didn’t Exist • technological capabilities • Individual Programs • One person used the computer at a time • “Job Scheduling” • Libraries 1st procedure ...
... When Operating Systems didn’t Exist • technological capabilities • Individual Programs • One person used the computer at a time • “Job Scheduling” • Libraries 1st procedure ...
fund8que.doc
... __ 2. DOS was a popular operating system in the past, but is no longer widely used. __ 3. A computer cannot work without an operating system. __ 4. The functions of an operating system include the following activities: memory management, booting up the computer, configuring devices, and monitoring s ...
... __ 2. DOS was a popular operating system in the past, but is no longer widely used. __ 3. A computer cannot work without an operating system. __ 4. The functions of an operating system include the following activities: memory management, booting up the computer, configuring devices, and monitoring s ...
Operating System Overview: Part 1 1 Objectives and functions
... Some programs may even need interaction with users, which requires the processor to switch to these programs frequently. To reach this new goal, a similar technique to multiprogramming can be used, called time sharing. In such a system, multiple users simultaneously access the system through termina ...
... Some programs may even need interaction with users, which requires the processor to switch to these programs frequently. To reach this new goal, a similar technique to multiprogramming can be used, called time sharing. In such a system, multiple users simultaneously access the system through termina ...
Chapter 2 Operating System Overview
... • After an interrupt handler completes, control may not return to the program that was executing at the time of the interrupt ...
... • After an interrupt handler completes, control may not return to the program that was executing at the time of the interrupt ...
Chapter 1 - OS Overview
... – Use more available storage by blocking records before retrieval and storage ...
... – Use more available storage by blocking records before retrieval and storage ...
Operating System
... With the earliest computers, from the late 1940s to the mid-1950s, the programmer interacted directly with the computer hardware; there was no OS.These computers were run from a console consisting of display lights, toggle switches, some form of input device, and a printer. Programs in machine code ...
... With the earliest computers, from the late 1940s to the mid-1950s, the programmer interacted directly with the computer hardware; there was no OS.These computers were run from a console consisting of display lights, toggle switches, some form of input device, and a printer. Programs in machine code ...
Components of an operating system
... can be used to issue commands by either typing them at a command prompt or pointing and clicking the mouse on a graphical user interface (GUI). Kernel – This is the core of the operating system. The kernel is responsible for loading and operating programs or processes and managing input and output. ...
... can be used to issue commands by either typing them at a command prompt or pointing and clicking the mouse on a graphical user interface (GUI). Kernel – This is the core of the operating system. The kernel is responsible for loading and operating programs or processes and managing input and output. ...
OS 2200
OS 2200 is the operating system for the Unisys ClearPath Dorado family of mainframe systems. The operating system kernel of OS 2200 is a lineal descendant of Exec 8 for the UNIVAC 1108. Documentation and other information on current and past Unisys systems can be found on the Unisys public support website.See Unisys 2200 Series system architecture for a description of the machine architecture and its relationship to the OS 2200 operating system.